A certified copy of something and a notorized copy? Does anyone know if you're applying for a replacement SS card for a child and use school or doctor records if they have to be certified?
A certified copy is provided by the issuing agency/department stating that the document is a legal copy, and includes an embossed seal. A notarized copy is basically a document that the notary has certified that they witnessed you sign. In the case of a replacement SS card, I would think they would want certified copies, but I didn't stay at a Holiday Inn Express last night, so I can't be sure. I'm sure someone with some legal background will be along soon to help clarify things.
Either way, I would call the SSA and see what they say.